Remember this:
Inauguration Day
Until the ratification of the Twentieth Amendment in 1933, the official day for presidential inaugurations was March 4 . When the fourth fell on a Sunday, as it did in 1821, 1849, 1877, and 1917, the ceremonies were held on March 5.
See Trump Hotel Calendar:
https://www.loc.gov/item/today-in-history/march-04
so compelling.